/Engine/Source/Runtime/Engine/Classes/Sound/SoundNode.h
When this is called and stream caching is enabled, any wave player sound nodes childed off of this node with loading behavior set to "Inherited" will have their loading behavior updated and their bLoadingBehaviorOverridden flag raised
virtual void OverrideLoadingBehaviorOnChildWaves ( const bool bRecurse, const ESoundWaveLoadingBehavior InLoadingBehavior )